Wall standard for shelf brackets



FIG. 1 is a perspective view of a wall standard for shelf brackets, showing my new design;

FIG. 2 is a front elevational view thereof; the rear elevational view being a mirror image thereof;

FIG. 3 is a left side elevational view thereof, the right side elevational view being a mirror image thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a “wall standard for shelf brackets,” as shown and described. 